Vector control algorithm was first used to solve the torque control problem of AC motor. At present, vector control strategy has been used in AC asynchronous motor more mature. In addition, permanent magnet synchronous motor (PMSM) has been more and more widely used in national defense, industrial and agricultural production, and daily life due to its own advantages. Therefore, this paper studies the application of vector control algorithm in permanent magnet synchronous motor (PMSM). In this paper, the working principle of permanent magnet synchronous motor (PMSM) is discussed, and the mode of PMSM is constructed. Then, the control principle of vector control algorithm is discussed, and its control model is constructed. In addition, a complete program is built by Simulink, and the simulation is carried out.
To solve the problem of complexly modeling control system in the conventional, a method for direct torque control driving system of industrial robot asynchronous motor is proposed based on MATLAB/ Simulink by employing the space vector pulse width modulation (SVPWM). The structure and blocking modeling method are employed. Meanwhile, the stator flux linkage control of the principle of direct torque control (DTC) system is analyzed and improved. Finally, through MATLAB/Simulink simulation, the effectiveness of the algorithm is verified. Simulation results show that the introduction of space vector modulation combined with direct torque control (SVM_DTC) control system model achieve good control effect and make the magnetic linkage more accurate.
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